Wakahiko Kammori

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Patents Grantslast 30 patents

Information Patent Grant
Apparatus for producing spiral pipes with rib
- Patent number 5,051,081
- Issue date Sep 24, 1991
- Toyox Co., Ltd.
- Wakahiko Kammori
- B29 - WORKING OF PLASTICS WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL